The device that is used for mechanically connecting vehicles
Technical field
The present invention relates to a kind of mechanically connecting vehicles, the device of city railroad electric car vehicle especially, wherein, connect by the hinge pull bar as underneath hinges connecting device vehicle.
Background technology
Some rail network that is particularly useful for tramway train has crest or trough, and they require vehicle to have high ground clearance.Low vehicle frame vehicle can not use on this rail network.Because low vehicle frame vehicle is convenient to get on or off the bus, be highly significant therefore but then.
If the train of being made up of at least two vehicles crosses crest or trough, then the junction of two vehicles shape at an angle, it is called as pitch angle (Nickwinkel).The someone advises, by two vehicles of appropriate connection this pitch angle is reduced by half.Use a kind of so far as this type of known lemniscate axlebox rod for this reason.It rotatably is contained on the door frame, and the latter is captiveed joint with the underneath hinges pull bar.Two pipe links from the lemniscate axlebox rod are hinged on respectively on one of the adjacent compartment of connected vehicle.By the lemniscate axlebox rod with pitch angle in two, wherein first subangle appears between first vehicle and the door frame, and second subangle appears between the door frame and second vehicle.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of device that simply is used for mechanically connecting vehicle is provided, and it can make when dividing pitch angle equally equally well more economically, and in addition has than the lighter weight of lemniscate axlebox rod device.In addition, by preferred expansion design, also should reduce the interference effect of bend superelevation of outer rail.
Solved like this according to the above-mentioned technical matters of the present invention, that is,, on each vehicle, can be laid two pin-joint pieces pivotally around vertical axis as independent upper hinge connecting device; And, follow and sail direction, the right pin-joint piece of first vehicle is connected by the bearing that does not support with the left pin-joint piece of second vehicle rotationally with the left pin-joint piece of the right pin-joint piece of second vehicle and first vehicle, thereby makes variable parallelogram of the common formation of these four pin-joint pieces.
Here, the vertical axis of pin-joint piece is in the hinge top that almost vertically is in the underneath hinges pull bar.The structure of this parallelogram form is impelled the bubble flare equal and opposite in direction all the time of the paired pin-joint piece of two vehicles.The described not bearing of supporting is followed to be sailed direction and sees the center that is in all the time between the vehicle.Thereby be similar to lemniscate axlebox rod device, cause two pitch angle between the vehicle always to be divided into two, exactly assign on two point of connection that are connected lower vehicle hinge pull bar.
Thus obtained advantage is even without the lemniscate axlebox rod device of costliness, also can realize that pitch angle reduces by half by simple and economic device.Can advantageously cancel in lemniscate axlebox rod device necessary weight and expensive door frame, consequently expendable weight significantly.Because pitch angle reduces by half, so low vehicle frame vehicle can use on the highway section that crest or trough are arranged.
Particularly advantageously be applicable to the compartment that connects city railroad electric car vehicle according to device of the present invention, but device of the present invention can use on other any trains also, and even on the articulated bus, use.
For example, two of vehicle pin-joint pieces are installed as and can turn round around public vertical axis.
By another kind of embodiment, the pin-joint piece of a vehicle is installed as and can turns round around own vertical axis respectively.These pin-joint pieces can for example be designed to flat member.
For example, the described at least pin-joint piece of a vehicle is made up of upper boom and lower beam respectively, rather than flat member, and they are installed as and can turn round around vertical axis.Less for the material that this form of implementation needs, thus further expendable weight.
For example, upper boom is connected with vertical axis by the multi-directional ball joint with lower beam; And upper boom and lower beam are connected to each other by cyclarthrosis, and this cyclarthrosis is connected with the vertical not bearing of supporting.
The advantage that adopts this special device to obtain is, can compensate vehicle reversing each other.Reverse and be meant, for example when bend, under the situation of the superelevation of outer rail of track, the fwd vehicle at first rotates around its longitudinal axis with respect to the vehicle in the back.This motion is born by multi-directional ball joint and cyclarthrosis, thereby can not cause the mechanical load or even the bending of member.Can be advantageously compensate vehicle reversing each other here in simple mode.
Reverse in order to suppress described, can set rubber draft gear, hydraulic actuating cylinder or mechanical spring for the joint ball head.
The advantage that employing obtains according to device of the present invention especially, comparing with lemniscate axlebox rod device no longer needs door frame.Pitch angle is reduced by half.At last, can compensate vehicle reversing each other by expansion design.
Must be applied to the cable of another vehicle from a vehicle, can advantageously be connected with pin-joint piece.In addition can be on pin-joint piece fixing bellows.
Description of drawings
Describe this device that is used for mechanically connecting vehicles in detail by accompanying drawing below.
Fig. 1 schematically illustrates the lateral plan of two interconnected vehicles;
Fig. 2 schematically illustrates the birds-eye view of two the interconnected vehicles identical with Fig. 1;
Fig. 3 represents a kind of flexible program of form of implementation shown in Figure 2, wherein only shows different parts;
Fig. 4 represents a kind of flexible program of form of implementation shown in Figure 1, wherein only shows different parts.
Identical member has same Reference numeral in the drawings.
The specific embodiment
According to Fig. 1, two vehicles 1 shown in only local with 2 below be connected its permission vehicle 1 and 2 pitching and reversing by a hinge pull bar 3 as the underneath hinges connecting device.Pitching be vehicle 1 and 2 around imaginary a, level, rotatablely move perpendicular to a kind of of axis of travel direction a orientation, and occur in interconnected vehicle 1 and 2 and cross under the situation of crest or trough.Replacement has represented that perpendicular to the axis that the figure paper plane extends a kind of of vehicle refers rotatablely moving of pitching around pitch angle β.Reversing is that vehicle 1 and 2 follows a kind of of axis b who sails the direction horizontal orientation and rotatablely moves around imaginary, and when for example occurring in interconnected vehicle 1 and 2 and arriving the curved section of the track of superelevation of outer rail in succession.
As independent upper hinge connecting device, on each vehicle 1 and 2, can lay two pin- joint piece 4a, 4b and 4c, 4d pivotally around vertical axis 5a and 5b according to Fig. 2.Here, follow and drive direction a and see, always right pin-joint piece 4a and 4c and correspondingly left pin- joint piece 4b and 4d are connected to each other rotationally by the bearing 6a and the 6b of not supporting.Therefore these four pin-joint piece 4a to 4d constitute a variable parallelogram jointly.The pin-joint piece 4c of the pin-joint piece 4a by first vehicle 1 in this parallelogram and the bubble flare γ of 4b and second vehicle 2 and the bubble flare γ of 4d be equal and opposite in direction all the time, so be uniformly distributed on two hinges of hinge pull bar 3 at any pitch angle β that occurs between vehicle 1 and 2, thereby make low vehicle frame vehicle can not produce excessive pitch angle β.
For the purpose of simplifying view, do not represent pin-joint piece 4a and 4c and bearing 6a among Fig. 1.
For each two pin- joint piece 4a and 4b or the 4c and the 4d of two vehicles 1 and 2, only lay a vertical axis 5a and 5b respectively among Fig. 2.Being set to according to Fig. 3 each pin-joint piece 4c and 4d on second vehicle 2 can be around vertical axis 5c and the 5d revolution of oneself.
According to Fig. 4, the pin-joint piece 4b of first vehicle 1 and correspondingly have the pin-joint piece 4a that illustrates or not is made up of upper boom 7 and lower beam 8 respectively.These bars 7 and 8 are set to can be around the hinge revolution that is laid on the vertical axis 5a.These hinges are multi-directional ball joints 9.In addition, upper boom 7 and lower beam 8 are connected to each other by cyclarthrosis 10 in vertical not the bearing 6a or the 6b front of supporting.Employing can compensate for example reversing in the curved section of the track of superelevation of outer rail of vehicle 1 and 2 by this combination of multi-directional ball joint 9 with cyclarthrosis 10.
Obtaining outstanding advantage by the angle that pitch angle β is divided into two 1/2nd is even low vehicle frame compartment also can travel on crest and by trough, needn't use expensive lemniscate axlebox rod device.Adopt low vehicle frame compartment to be convenient to get on the bus and get off.Improved ride comfort generally.